It appears snapshots aren’t being caputred in the most recent Mac beta:
Click on a single scene in the binder list
Click on the + in the snapshots panel
Get the visual and audible feedback as expected
Don’t get a new entry in the list of snapshots.
Have tried with varous documents from the binder, get the same result. Also quit and restarted Scrivener; same result.
Using MacBook Pro, OS X v10.7.4
Jim Hopkins